Here's a more thorough explanation by the PTB: The new optical ytterbium clock is 100 times more accurate than the previous recordPTB "The definition and realisation of the SI unit of time, the second, is currently based on cesium …
The new clock can beat the cesium clock, a type of atomic clock that an international body of experts has used to define the unit of one second. It is about 9.19 billion oscillations. The oscillations per second in the ytterbium clock
The ultimate accessory in exact timekeeping — the atomic clock — is set to become even more precise, after ultrashort laser pulses were successfully transmitted across open air to help synchronize the "ticking" of new optical atomic
While mechanical clocks use the movement of a pendulum to keep time, atomic clocks use an electromagnetic signal ... to obtain its best performance. But the new ytterbium clocks can achieve that same result in about one second of …
Atomic clocks built at the official U.S. timekeeping laboratory tick with record-breaking regularity, scientists said — marking an advance that may someday allow researchers to perform new tests of ... the record-setting ytterbium
In terms of stability, the new clock equals the performance of NIST's world-leading ytterbium atomic clock. Atomic
While mechanical clocks use the movement of a pendulum to keep time, atomic clocks use an electromagnetic signal ... to obtain the best performance. But the new ytterbium clocks can achieve that same result in about one second of …
WASHINGTON: Scientists claim to have developed a new record-breaking ... The strontium clock's stability - the extent to which each tick matches the duration of every other tick - is about the same as NIST's ytterbium atomic clock. …
achieving unprecedented levels of accuracy with a new atomic clock. Dubbed as optical single-ion clock, the device works by measuring the vibrational frequency of ytterbium ions as they oscillate back and forth hundreds of trillions …
The design, in which ytterbium atoms oscillate or "tick" at optical ... which have a nuclear magnetic field that causes some additional complications. The new clock uses atoms with even-numbered atomic masses that have no net …